Re: Tcpdump filters, problem with UDP and 2.4.x

James Stevenson (mail-lists@stev.org)
Mon, 15 Oct 2001 10:16:13 +0100


----- Original Message -----
From: "David Ford" <david@blue-labs.org>
To: <linux-kernel@vger.kernel.org>
Sent: Saturday, October 13, 2001 9:12 PM
Subject: Tcpdump filters, problem with UDP and 2.4.x

> I see a lot of "UDP: bad checksum. ..." between two of my servers. I
> haven't attached a tcpdump output of the packets because a) the packets
> between machine A and B travel through a GRE tunnel and b) does anyone
> have tcpdump filters or know how to finagle tcpdump into dumping the
> embedded packet instead of the GRE header'd packet?
>

id this for NFS udp traffic ?
if it is then you will see it i have seen this on both 2.2.x and 2.4.x
kernels
it only shows up on the nfs server side for me though.

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